71193087764 has 12 divisors (see below), whose sum is σ = 131916603924. Its totient is φ = 33502629504.

The previous prime is 71193087737. The next prime is 71193087767. The reversal of 71193087764 is 46778039117.

It can be written as a sum of positive squares in 2 ways, for example, as 31449475600 + 39743612164 = 177340^2 + 199358^2 .

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71193087767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523478519 + ... + 523478654.

It is an arithmetic number, because the mean of its divisors is an integer number (10993050327).

Almost surely, 2^71193087764 is an apocalyptic number.

It is an amenable number.

71193087764 is a deficient number, since it is larger than the sum of its proper divisors (60723516160).

71193087764 is a wasteful number, since it uses less digits than its factorization.

71193087764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046957194 (or 1046957192 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 53.

The spelling of 71193087764 in words is "seventy-one billion, one hundred ninety-three million, eighty-seven thousand, seven hundred sixty-four".